Home / 808,971.30-1,213,456.95-759,107.70

Finding the Fourth Proportional to 808,971.30, 1,213,456.95 and 759,107.70

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Solution

The fourth proportional to 808,971.30, 1,213,456.95 and 759,107.70 is: 1,138,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,971.30 : 1,213,456.95 = 759,107.70 : x
  2. Step 2: Convert to fraction form
    808,971.30/1,213,456.95 = 759,107.70/x
  3. Step 3: Cross multiply
    808,971.30x = 1,213,456.95 × 759,107.70
  4. Step 4: Simplify right side
    808,971.30x = 921,144,514,363.52
  5. Step 5: Solve for x
    x = 921,144,514,363.52/808,971.30
  6. Step 6: Final answer
    x = 1,138,661.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.